Race Grid Guide

Rules & penalties · Updated for 2026

Blue flags in Formula 1 explained

Why blue flags mean different things in practice, qualifying and the race.

Two silver FIA medical cars parked side by side
Historic FIA medical cars. Photo by Iorisrandombses5001 via Wikimedia Commons, licensed under CC0 1.0. Responsive display crop only. All image credits →

Quick answer

In practice or qualifying, a blue flag warns that a faster car is approaching. In a race, it orders a car about to be lapped to let the faster car pass at the earliest safe opportunity.

01

Practice and qualifying

A driver on a slow lap is alerted to a much faster car behind. The slower driver must remain predictable and avoid impeding the approaching timed lap.

02

During the race

The signal is shown when a leading car catches traffic by a full lap. The lapped car should facilitate the pass safely instead of defending track position.

03

Not an instant disappearance

The driver still has to choose a safe location. Moving unpredictably in a braking zone can create more danger than waiting briefly for a suitable straight.

Primary references

Rules change. These controlling sources take priority over this explainer.